Meeple Traffic Light

A decorative LED matrix traffic light inspired by American pedestrian crossing signals, but instead of a walking person, it shows a Meeple. Built around a 64×64 P2.5 LED matrix (160×160 mm) and an Adafruit Matrix Portal S3. The 3D-printed enclosure sandwiches the panel behind an acrylic sheet and screws together with M3 hardware.

Materials

Read this as a recommendation or a "how-I-did-it" list, you can obviously use other parts than me. Please share your variations in the comments!

• LED Matrix 64x64 P2.5 (160x160 mm)

• 3mm "frosted" acrylic sheet (170x170 mm)

• M3 heated inserts (8x)

• M3 counter-sunk screws (8x)

• Adafruit Matrix Portal S3

Print instructions

Nothing special, I printed everything with 0.2 mm layer height. When aligned correctly, it doesn't need supports.

Printed mine with Bambu Terracotta and Matte Black PLA.

Sample Code

I programmed the project with ESPHome. You can save the two images and use my example code here: https://gist.github.com/vigonotion/6b7a015ce1708455abfc7de811be75a5

Build Instructions

Note: you probably don't need all the inserts/screws, if you want you can only add 2 or 4.

1: Add threaded inserts (M3) into the 8 holes of the Body Front

2: Put the Front Plate into the Body Front

3: Put the acrylic sheet into the Front Plate 

4: Put the LED Panel together with the Shield into the Front Plate

5: Glue the Plug into the Body Back and wire everything up

6: Put the Back Body onto the Front Body

7: Screw both parts together with M3x12 screws

8: Done!